13. MTB Step 3 - ECGs Flashcards

1
Q

ARRHYTHMIAS

What are the (3) Simplified Criteria for Recognition of Atrial FIBRILLATION on ECG?

A
  1. Multiple F-waves replace P-waves at a Rate of 350 - 650 bpm
  2. Irregular Ventricular response (R-R cycle constantly varying). If the Ventricular rate is Rapid, Irregularity is More Difficult to Determine.
  3. The QRS resembles that of the Normal Cardiac rhythm.
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2
Q

ARRHYTHMIAS

See Pic

A

Atrial FIBRILLATION

with (characteristic) Irregular Ventricular Response

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3
Q

ARRHYTHMIAS

See Pic

A

Atrial FIBRILLATION

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4
Q

ARRHYTHMIAS

See Pic

A

Atrial FIBRILLATION

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5
Q

ARRHYTHMIAS

See Pic

A

Atrial FIBRILLATION

with 3 Unifocal VPCs in Bigeminy

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6
Q

ARRHYTHMIAS

See Pic

A

Atrial FIBRILLATION

with Bundle Branch Block

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7
Q

ARRHYTHMIAS

What are the (3) Simplified Criteria used for recognizing Atrial FLUTTER on ECG?

A
  1. Repetitive Firing of ONE focus in the Atria with a Regular F-F cycle between 220 - 350 bpm.
  2. F-waves replace P-waves
  3. The QRS complex usually resembles that of the Normal Cardiac Rhythm.
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8
Q

ARRHYTHMIAS

See Pic

A

Atrial FLUTTER

with 4:1 conduction (4 P-waves for each 1 QRS)

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9
Q

ARRHYTHMIAS

See Pic

A

Atrial FLUTTER

with Varying conduction

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10
Q

ARRHYTHMIAS

What are the (3) Simplified Criteria for Recognition of Accelerated JUNCTIONAL Rhythm and JUNCTIONAL Tachycardia on ECG?

A
  1. Rapid and Repetitive firing of Six or more JPCs in a row.
  2. The QRS usually resembles that of the Normal cardiac rhythm.
  3. The Ventricular Rate is between 60 - 99 bpm for an Accelerated Junctional Rhythm and between 100 - 220 bpm for a Junctional Tachycardia.
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11
Q

ARRHYTHMIAS

What is the Cause of Junctional Ectopic Rhythms?

A

Repetitive and Rapid firing of an Ectopic Focus located In or Around the AV Junction.

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